ayushchaudharytharu1
ayushchaudharytharu1 ayushchaudharytharu1
  • 04-08-2021
  • Mathematics
contestada

Cyruer.
Pucic Or the
(a) The surface area and volume of a sphere are in the ratio of 3 : 7
cm. What is the circumference
of its great circle and volume ? Find it.​

Respuesta :

caylus
caylus caylus
  • 04-08-2021

Answer:

Hello,

Step-by-step explanation:

Area of the sphere:

[tex]S=4*\pi *r^2[/tex]

Volume of the sphere:

[tex]V=\dfrac{4*\pi *r^3}{3}[/tex]

[tex]\dfrac{S}{3} =\dfrac{V}{7} \\\\\dfrac{4*\pi *r^2}{3} =\dfrac{4*\pi *r^3}{3*7} \\\\1=\dfrac{r}{7} \\\\\\r=7\\\\great \ circle: 2*\pi* r=14*\pi\\[/tex]

[tex]Volume=\dfrac{4*\pi *7^3}{3} =\dfrac{1372*\pi }{3} \approx{1436,7550...(cm^3)}[/tex]

Answer Link

Otras preguntas

Put these numbers to least to greatest negative 0.9, negative 0.09,negative 0.99!!(Thank you)!!
How do I get the solution for 4x-9=3.5x-9?
Can you show me how to divided 33 into to two groups so the ratio is 4 to 7 show me all the work
Are these sentences time, sequence, condition, or state? We will have completed a full week's worth of work in the forest. We will be flying to a remote part of
Twelve friends came to Guy’s birthday party. He received seven gifts and a total of $95 in cash for his birthday. He buys an airplane model kit for $9, and he w
What is 0.03703704 as a fraction
Do all parallelograms have diagonals that are lines of symmetry?
What is the value the 0 in the number 601,099
______ happens at the end of telophase II.
ammar hikes 23/4 miles of nature trail in 1 hour and 15 min .How many miles of trail does ammar hike per hour? pleas help me to understand this